• BuffFactory.java - Central registry for all buff types, maps class names to buff classes
• Buff.java - Base class for all buffs
• Char.java - Actor base class with buff management (buff(), hasBuff(), buffLevel(), removeBuff())
• BuffIndicator.java - Icon constants for buff display in UI

• Doom.java - Interface for deadly buffs that trigger special death conditions
• ArtifactBuff.java - Base class for artifact-granted buffs
• TemporaryBuff.java - Base class for timed buffs

BuffFactory maintains a static map of buff class names to Class objects:

private static final Map<String, Class<? extends Buff>> buffMap = new HashMap<>();
 
static {
    // Register all buff classes
    buffMap.put("Bleeding", Bleeding.class);
    buffMap.put("Poison", Poison.class);
    // ... etc
}

Retrieving buff by name:

public static Buff getBuffByName(String className) {
    Class<? extends Buff> buffClass = buffMap.get(className);
    return buffClass != null ? buffClass.newInstance() : null;
}

• buff(Class<? extends Buff> buffClass) - Apply buff with default duration
• buff(Class<? extends Buff> buffClass, float duration) - Apply buff with specific duration
• hasBuff(Class<? extends Buff> buffClass) - Check if buff is present
• buffLevel(Class<? extends Buff> buffClass) - Get number of buff stacks
• removeBuff(Class<? extends Buff> buffClass) - Remove specific buff
• clearBuffs() - Remove all buffs

Buffs implementing Doom interface:

• Necrotism - Spreads to nearby, kills on death
• StoneBlood - Wall walking, immurement on death
• CursedKing - Cursed King artifact buff
• LichEssence - Lich transformation buff

Buffs granted by artifacts (implement ArtifactBuff):

• StoneBlood - Ring of Stone Walking
• LichEssence - Lich artifact
• CursedKing - Cursed King artifact
• AbyssalPresence - Abyssal artifact

Standard string naming pattern for buffs:

• `{BuffName}_Name` - Display name
• `{BuffName}_Info` - Description
• `{BuffName}_Death` - Death message
• `ResultDescriptions_{BuffName}` - Death reason description

Most buffs are registered in BuffFactory, not configured via JSON. Some artifact buffs are configured in:

• `initHeroes.json` - Starting buffs for hero classes
• `levelsDesc/Bestiary.json` - Mob buff immunities

• Buff Indicator Constants
• Doom Interface
• Artifact Buff Base Class
• Necrotism Buff
• StoneBlood Buff
• Bleeding Buff
• Poison Buff